CN213583943U - Battery module and power battery - Google Patents
Battery module and power battery Download PDFInfo
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- CN213583943U CN213583943U CN202023231309.1U CN202023231309U CN213583943U CN 213583943 U CN213583943 U CN 213583943U CN 202023231309 U CN202023231309 U CN 202023231309U CN 213583943 U CN213583943 U CN 213583943U
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- battery module
- heat dissipation
- battery
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- dissipation channel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a lithium cell provides a battery module and power battery. Battery module include casing, a plurality of electric core and a plurality of baffle, it is a plurality of electric core piles up in the casing, the baffle is located adjacent two between the electric core, the baffle orientation be provided with heat dissipation channel on at least one side of electric core, be provided with the conducting strip in the heat dissipation channel. Power battery be provided with foretell battery module. The battery module can be used for rapidly dissipating heat generated by the battery core, preventing the battery core and the module from thermal runaway, and ensuring the safety of the battery module.
Description
Technical Field
The utility model relates to a lithium cell, in particular to battery module. The utility model discloses still relate to a power battery including this battery module.
Background
In the batteries in the current market, the performance of the lithium ion battery is the best, and the energy of the lithium ion battery under the same quality is 4-6 times that of a lead-acid battery and 2-3 times that of a nickel-hydrogen battery. The main raw material of the lithium ion battery is lithium, the lithium ore resources in China are rich, and the total detected lithium reserves are the second in the world; lithium ions are also present in seawater and can be extracted from seawater by solar energy in the future. In addition, lithium ion batteries have the potential to be recycled, which can alleviate the problem of raw material requirements.
More and more automobile manufacturers at home and abroad select the lithium ion battery as the power battery of the electric automobile, and the research on the technical aspect of the lithium ion battery is continuously broken through. However, lithium ion batteries also have a certain safety hazard, and the components (positive electrode, negative electrode, separator, electrolyte, and the like) inside the lithium ion battery react violently at high temperatures, causing thermal runaway. Therefore, the working temperature of the lithium battery or the lithium iron phosphate battery is not higher than 60 ℃, the working environment temperature of the battery is increased under the conditions of high-rate discharge or outdoor temperature and high temperature, and the situation is very dangerous if thermal runaway occurs. In order to avoid the similar situation, the heat dissipation effect of the power battery is particularly important. However, after most of the lithium ion batteries are grouped at present, the heat dissipation effect of the battery core is not ideal, so that the battery core has a phenomenon of local overhigh temperature.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a battery module to can dispel the heat fast to the heat that electric core produced, prevent that electric core and module from taking place the thermal runaway, guarantee the security of battery module.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a battery module, includes casing, a plurality of electric core and a plurality of baffle, and is a plurality of electric core piles up in the casing, the baffle is located adjacent two between the electric core, the baffle orientation be provided with heat dissipation channel on at least one side of electric core, be provided with the conducting strip in the heat dissipation channel.
Further, the heat dissipation channel is provided with a plurality of grooves, the grooves are located on the partition board, the openings of the grooves face the battery core, and the heat conducting fins are located in the grooves corresponding to the heat conducting fins.
Furthermore, the groove is arranged to extend and penetrate along the width direction of the partition board, and two ends of the groove are respectively in contact with the side plates of the shell.
Further, the groove is arranged to extend in the height direction of the partition plate and penetrate through the partition plate, and the bottom end of the groove is in contact with the bottom plate of the shell.
Further, a plurality of grooves are uniformly distributed on the side surface of the partition plate.
Further, the heat conducting sheet is a silica gel molding piece.
Further, the baffle is the aerogel pad, the aerogel pad is one of foaming polypropylene forming part, foaming polyethylene terephthalate forming part and foaming polyvinyl chloride forming part.
Furthermore, the partition board is adhered to the two adjacent battery cores through a glue material.
Furthermore, a plurality of heat dissipation holes are formed in the shell.
Compared with the prior art, battery module have following advantage:
(1) battery module separate electric core through the baffle, avoid direct contact between the adjacent electric core, through be provided with heat dissipation channel on the baffle, be equipped with the conducting strip in the heat dissipation channel for the conducting strip can with electric core direct contact, in order to transmit the heat that electric core produced to the conducting strip fast, and dispel the heat through heat dissipation channel, in order to make the heat that electric core produced diffuse fast, prevent that electric core high temperature from taking place the thermal runaway, guarantee the security of battery module.
(2) Battery module in set up the recess that the heat dissipation channel set up to run through on the baffle to make the recess can contact with the curb plate or the bottom plate of casing, so that the heat that electric core produced can transmit to the casing through heat dissipation channel and conducting strip, through the casing with heat diffusion to the air in, so that the cooling efficiency to electric core is higher, further improves the security of electric core and battery module.
Another object of the utility model is to provide a power battery to can dispel the heat fast to the heat that electric core produced, prevent that electric core and module from taking place the thermal runaway, guarantee the security of battery module.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a power battery is provided with the battery module of any one of the above technical schemes.
The advantages of the power battery and the battery module are the same as those of the battery module in the prior art, and are not described herein again.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of a first battery cell and a separator according to an embodiment of the present invention;
fig. 2 is a top view of a first battery cell and a separator plate according to an embodiment of the present invention applied to a battery module;
FIG. 3 is a side view of FIG. 2;
fig. 4 is a schematic structural diagram of a second battery cell and a separator according to an embodiment of the present invention.
Description of reference numerals:
1 side plate of the housing 11
12 bottom plate 2 electric core
3 heat dissipation channel of partition plate 31
32 heat conducting fin
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
In addition, in the embodiments of the present invention, the terms "inside", "outside", "top", "bottom", etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and based on the housing 1, "top" refers to the top of the housing 1, and correspondingly, "bottom" refers to the bottom of the housing 1, "inside" refers to the inside of the housing 1, "outside" refers to the outside of the housing 1, the width direction of the separator 3 refers to the extending direction of the side of the separator 3 along the horizontal plane when the separator 3 is vertically disposed, and the height direction of the separator 3 refers to the extending direction of the side of the separator 3 along the vertical plane when the separator 3 is vertically disposed, which is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
The utility model discloses the battery module that the first aspect provided, refer to fig. 1 to fig. 4, including casing 1, a plurality of electric core 2 and a plurality of baffle 3, a plurality of electric core 2 pile up in casing 1, and baffle 3 is located between two adjacent electric cores 2, and baffle 3 is provided with heat dissipation channel 31 on at least one side towards electric core 2, is provided with conducting strip 32 in the heat dissipation channel 31.
It should be noted that, two sides of the partition board 3 are respectively contacted or connected with the battery cell 2, the heat dissipation channel 31 may be only disposed on one side of the partition board 3, that is, only one of two side surfaces of the partition board 3 facing the battery cell 2 is provided with the heat dissipation channel 31, preferably, the heat dissipation channel 31 is disposed on two sides of the partition board 3, that is, two side surfaces of the partition board 3 facing the battery cell 2 are respectively provided with the heat dissipation channel 31, so as to improve the efficiency of heat dissipation for the battery cell 2; the heat dissipation channels 31 may be regularly distributed on the partition plate 3, or may be irregularly distributed; in general, a plurality of battery cells 2 are stacked in a thickness direction thereof, the battery cells 2 may be vertically arranged and stacked, correspondingly, the separators 3 may also be vertically arranged, the battery cells 2 may also be horizontally arranged and stacked, and correspondingly, the separators 3 may also be horizontally arranged and stacked. For the convenience of understanding and explaining the present invention, the following description will be made in detail in a case where the battery cell 2 and the separator 3 are vertically disposed and overlapped in a staggered manner.
The utility model discloses above-mentioned basic technical scheme's battery module, electricity core 2 can produce the heat in the use, make the local temperature of electricity core 2 rise, because baffle 3 and the contact of electricity core 2, heat dissipation channel 31 and conducting strip 32 on the baffle 3 also can contact with the adjacent electricity core 2 of this baffle 3 respectively, so that the heat that electricity core 2 produced not only can spread to heat dissipation channel 31, can also transmit fast to conducting strip 32, and further spread to heat dissipation channel 31 through conducting strip 32, distribute away the heat through heat dissipation channel 31 at last, with the realization to the quick heat dissipation of electricity core 2, avoid the local temperature of electricity core 2 too high, in order can prevent the whole thermal runaway's of electricity core 2 and battery module emergence, guarantee the security of battery module.
The utility model discloses in, heat dissipation channel 31 can be through setting up protruding structure and/or groove structure formation on the corresponding side of baffle 3 to when making the side of baffle 3 and electric core 2 contact, form certain clearance between the two, as the passageway that the heat of electric core 2 gived off. In the present invention, in some preferred embodiments of the heat dissipation channel 31, the heat dissipation channel 31 is configured as a plurality of grooves, the grooves are located on the partition board 3, the opening faces the electric core 2, and the heat conduction sheet 32 is located in the groove corresponding to the heat conduction sheet 32.
As a preferable structure of the heat dissipation channel 31, referring to fig. 4, a groove is provided to extend and penetrate in the width direction of the partition plate 3, and both ends of the groove are in contact with the side plates 11 of the case 1, respectively. At this moment, the two ends of the heat dissipation channel 31 are respectively in contact with the side plates 11 of the casing 1, and when the heat dissipation channel 31 is filled with the heat conducting fins 32, the two ends of the heat conducting fins 32 can also be in contact with the side plates 11, so that heat generated by the battery cell 2 can be transferred to the casing 1 through the heat dissipation channel 31 and the heat conducting fins 32, the heat is diffused to the air through the casing 1, and the cooling efficiency of the battery cell 2 is further improved.
As another preferable structure of the heat dissipation channel 31, referring to fig. 1, a groove is provided to extend in the height direction of the partition plate 3 and penetrate therethrough, and the bottom end of the groove is in contact with the bottom plate 12 of the housing 1. At this time, the bottom end of the heat dissipation channel 31 contacts the bottom plate 12 of the housing 1, and the top end may contact the top plate of the housing 1 or air; when the heat dissipation channel 31 is filled with the heat conduction sheet 32, one end of the heat conduction sheet 32 can also be in contact with the bottom plate 12, and the other end of the heat conduction sheet is in contact with the top plate or the air of the casing 1, so that the heat generated by the battery cell 2 can be transmitted to the casing 1 or quickly dissipated to the air through the heat dissipation channel 31 and the heat conduction sheet 32, and the cooling efficiency of the battery cell 2 is improved.
Under the preferred circumstances, a plurality of recesses evenly distributed are on the side of baffle 3, and heat dissipation channel 31 evenly distributed is in the both sides of electric core 2 promptly to can be comparatively even to electric core 2's radiating effect, avoid local heat dissipation slow, the high temperature on electric core 2.
The utility model discloses in, conducting strip 32 adopts hot good conductor material to have good insulating properties, so that conducting strip 32 can absorb the heat that electric core 2 produced fast, and give off to heat dissipation channel 31, can also guarantee the security of electric core 2, avoid making to form electrical contact or short circuit between electric core 2. Preferably, the heat conducting sheet 32 is a silica gel molded part, so that the heat conducting sheet 32 can be set to have a size and a shape matched with the heat dissipation channel 31, the heat dissipation channel 31 is filled with the heat conducting sheet 32, and the heat dissipation efficiency of the battery cell 2 is further improved.
In some preferred embodiments of the middle battery module of the present invention, the separator 3 is an aerogel pad, and the aerogel pad is one of a foamed polypropylene molding member, a foamed polyethylene terephthalate molding member, and a foamed polyvinyl chloride molding member. Aerogel pad has the security height, thermal-insulated effectual, the high performance of elasticity to when making it as baffle 3, can avoid forming heat transfer between adjacent electric core 2, and when electric core 2 temperature rise formed the inflation, avoid the extrusion between electric core 2, in order to further improve electric core 2's safety in utilization.
Under the preferred circumstances, baffle 3 and two adjacent electric cores 2 are through gluing the material adhesion, not only make the relative position of baffle 3 and electric core 2 fixed, can also be in the same place with a plurality of electric cores 2 adhesion in order to form the battery module, thereby avoid the battery module 2 to take place the skew in the use electric core, influence the radiating effect to electric core 2. During specific operation, the two sides of the partition board 3 connected with the battery cell 2 can be glued and then adhered to the battery cell 2.
The utility model discloses in some preferred embodiments of well battery module, be provided with a plurality of louvres on the casing 1 to the heat that can accelerate heat dissipation channel 31 and electric core 2 improves the efficiency to the whole heat dissipation cooling of battery module from the speed of louvre diffusion.
As a first relatively preferred embodiment of the battery module of the present invention, including a housing 1, a plurality of battery cells 2 and a plurality of separators 3, wherein the plurality of battery cells 2 are stacked in the housing 1, the separators 3 are located between two adjacent battery cells 2, two sides of the separators 3 facing the battery cells 2 are respectively provided with a heat dissipation channel 31, the heat dissipation channel 31 is provided with a plurality of grooves which are located on the separators 3 and open toward the battery cells 2, a heat conduction sheet 32 is provided in the heat dissipation channel 31, the heat conduction sheet 32 is a silica gel molded piece and can fill the corresponding heat dissipation channel 31, the grooves are arranged to extend along the width direction of the separators 3 and penetrate, two ends of the grooves are respectively contacted with the side plates 11 of the housing 1, the plurality of grooves are uniformly distributed on the sides of the separators 3, the separators 3 are aerogel pads, the aerogel pads are foamed polypropylene molded pieces, the separators 3 are adhered to the two adjacent battery cells 2 by, the housing 1 is provided with a plurality of heat dissipation holes.
Above-mentioned battery module that provides, electric core 2 can produce the heat in the use for electric core 2's local temperature risees, and electric core 2's heat is partly can be followed heat dissipation channel 31 diffusion and from the louvre diffusion, and partly transmits curb plate 11 to casing 1 through heat dissipation channel 31 and conducting strip 32, through curb plate 11 and louvre with heat diffusion to the air, in order to realize the quick heat dissipation to electric core 2.
As a first relatively preferred embodiment of the battery module of the present invention, the battery module comprises a housing 1, a plurality of battery cells 2 and a plurality of separators 3, wherein the plurality of battery cells 2 are stacked in the housing 1, the separators 3 are located between two adjacent battery cells 2, two sides of the separators 3 facing the battery cells 2 are respectively provided with a heat dissipation channel 31, the heat dissipation channels 31 are provided with a plurality of grooves which are located on the separators 3 and open toward the battery cells 2, heat conduction sheets 32 are arranged in the heat dissipation channels 31, the heat conduction sheets 32 are silica gel molded pieces and can fill the corresponding heat dissipation channels 31, the grooves are arranged to extend along the height direction of the separators 3 and penetrate through, the bottom ends of the grooves are in contact with a bottom plate 12 of the housing 1, the plurality of grooves are uniformly distributed on the sides of the separators 3, the separators 3 are aerogel pads, the aerogel pads are foamed polypropylene molded pieces, the separators 3 are adhered to the two, the housing 1 is provided with a plurality of heat dissipation holes.
Above-mentioned battery module that provides, electric core 2 can produce the heat in the use for electric core 2's local temperature risees, and electric core 2's heat is partly can be followed heat dissipation channel 31 diffusion and from the louvre diffusion, and partly transmits to casing 1's bottom plate 12 through heat dissipation channel 31 and conducting strip 32, through bottom plate 12 and louvre with heat diffusion to the air, in order to realize the quick heat dissipation to electric core 2.
On the basis of the utility model discloses foretell battery module, the utility model discloses the second aspect provides a power battery, is provided with an arbitrary technical scheme of above-mentioned battery module. Therefore, the battery module has at least all the advantages brought by the technical scheme of the embodiment of the battery module.
As can be seen from the above description, the utility model provides a battery module separates electric core 2 through baffle 3, avoid direct contact between the adjacent electric core 2, through be provided with heat dissipation channel 31 on baffle 3, be equipped with conducting strip 32 in the heat dissipation channel 31, make conducting strip 32 can with electric core 2 direct contact, in order to transmit the heat that electric core 2 produced to conducting strip 32 fast, and dispel the heat through heat dissipation channel 31, so that the heat that electric core 2 produced diffuses fast, prevent that 2 high temperature of electric core from taking place the thermal runaway, guarantee battery module's security.
The utility model discloses a preferred embodiment sets up heat dissipation channel 31 as the recess that runs through on baffle 3 in the battery module to make the recess can contact with curb plate 11 or bottom plate 12 of casing 1, so that the heat that electric core 2 produced can transmit to casing 1 through heat dissipation channel 31 and conducting strip 32, through casing 1 with heat diffusion to the air in, so that the cooling efficiency to electric core 2 is higher, further improves the security of electric core 2 and battery module.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a battery module, its characterized in that, includes casing (1), a plurality of electric core (2) and a plurality of baffle (3), and is a plurality of electric core (2) pile up in casing (1), baffle (3) are located adjacent two between electric core (2), baffle (3) orientation be provided with heat dissipation channel (31) on at least one side of electric core (2), be provided with heat conduction piece (32) in heat dissipation channel (31).
2. The battery module according to claim 1, wherein the heat dissipation channel (31) is provided as a plurality of grooves, the grooves are located on the separator (3) and open towards the battery cell (2), and the heat conduction sheet (32) is located in the corresponding groove of the heat conduction sheet (32).
3. The battery module according to claim 2, wherein the groove is provided to extend in the width direction of the separator (3) and penetrate therethrough, and both ends of the groove are in contact with the side plates (11) of the case (1), respectively.
4. The battery module according to claim 2, wherein the groove is provided to extend in the height direction of the separator (3) and penetrate therethrough, and the bottom end of the groove is in contact with the bottom plate (12) of the case (1).
5. The battery module according to claim 2, wherein the plurality of grooves are uniformly distributed on the side surface of the separator (3).
6. The battery module according to any one of claims 1 to 5, wherein the thermally conductive sheet (32) is a silicone molding.
7. The battery module according to any one of claims 1 to 5, wherein the separator (3) is an aerogel pad, and the aerogel pad is one of a foamed polypropylene molding, a foamed polyethylene terephthalate molding, and a foamed polyvinyl chloride molding.
8. The battery module according to claim 7, characterized in that the separator (3) is adhered to two adjacent cells (2) by a glue material.
9. The battery module according to any one of claims 1 to 5, wherein a plurality of heat dissipation holes are provided in the case (1).
10. A power battery, characterized in that, is provided with the battery module of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023231309.1U CN213583943U (en) | 2020-12-28 | 2020-12-28 | Battery module and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023231309.1U CN213583943U (en) | 2020-12-28 | 2020-12-28 | Battery module and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213583943U true CN213583943U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023231309.1U Active CN213583943U (en) | 2020-12-28 | 2020-12-28 | Battery module and power battery |
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| CN (1) | CN213583943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115832565A (en) * | 2022-12-28 | 2023-03-21 | 厦门海辰储能科技股份有限公司 | Battery module and battery pack |
-
2020
- 2020-12-28 CN CN202023231309.1U patent/CN213583943U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115832565A (en) * | 2022-12-28 | 2023-03-21 | 厦门海辰储能科技股份有限公司 | Battery module and battery pack |
| CN115832565B (en) * | 2022-12-28 | 2024-01-26 | 厦门海辰储能科技股份有限公司 | Battery module and battery pack |
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Address after: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: SVOLT Energy Technology Co.,Ltd. Address before: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: SVOLT Energy Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |